Commit Graph

13 Commits

Author SHA1 Message Date
Chris S. Kim ca717ced07 Track last user of a port 2022-08-08 17:30:05 -04:00
Chris S. Kim dfaf798995 Add debugging logs to freeport 2022-08-08 15:25:17 -04:00
Daniel Nephin 056a52ba64 sdk/freeport: rename Port to GetOne
For better consistency with GetN
2021-11-30 17:32:41 -05:00
Daniel Nephin 11cdf7dfd9 sdk: upgrade freeport godoc
To clarify how it works, and when it is important to use.
2021-11-30 12:41:14 -05:00
Daniel Nephin 8219e8571e sdk: add freeport functions that use t.Cleanup 2021-11-27 15:04:43 -05:00
R.B. Boyer 83bf7ab3ff
re-run gofmt on 1.17 (#11579)
This should let freshly recompiled golangci-lint binaries using Go 1.17
pass 'make lint'
2021-11-16 12:04:01 -06:00
Shengjing Zhu 403e1e2534 sdk: read procfs instead of using sysctl command
This drops the dependency of sysctl command
2020-10-25 00:37:04 +08:00
Pierre Souchay fa1f9eb144
[BUGFIX] Fix race condition in freeport (#7567)
This removes a race condition in reset since pendingPorts can be set to nil in reset()

If ticker is hit at wrong time, it would crash the unit test.

We ensure in reset to avoid this race condition by cancelling the goroutine using
killTicker chan.

We also properly clean up eveything, so garbage collector can work as expected.

To reproduce existing bug:
`while go test -timeout 30s github.com/hashicorp/consul/sdk/freeport -run '^(Test.*)$'; do go clean -testcache; done`

Will crash after a few 10s runs on my machine.

Error could be seen in unit tests sometimes:

[INFO] freeport: resetting the freeport package state
panic: runtime error: invalid memory address or nil pointer dereference
[signal SIGSEGV: segmentation violation code=0x1 addr=0x28 pc=0x1125536]

goroutine 25 [running]:
container/list.(*List).Len(...)
	/usr/local/Cellar/go/1.14/libexec/src/container/list/list.go:66
github.com/hashicorp/consul/sdk/freeport.checkFreedPortsOnce()
	/Users/p.souchay/go/src/github.com/hashicorp/consul/sdk/freeport/freeport.go:157 +0x86
github.com/hashicorp/consul/sdk/freeport.checkFreedPorts()
	/Users/p.souchay/go/src/github.com/hashicorp/consul/sdk/freeport/freeport.go:147 +0x71
created by github.com/hashicorp/consul/sdk/freeport.initialize
	/Users/p.souchay/go/src/github.com/hashicorp/consul/sdk/freeport/freeport.go:113 +0x2cf
FAIL	github.com/hashicorp/consul/sdk/freeport	1.607s
2020-04-01 13:14:33 -05:00
Pierre Souchay 6cb2bccca6
Proper detection of ephemeral ports on Mac OS (#7539)
Use systemctl to properly detect ephemeral ports on Mac OS (aka darwin) by fetching
systemctl values:
 * net.inet.ip.portrange.first
 * net.inet.ip.portrange.last

This will avoid the message:

`[INFO] freeport: ephemeral port range detection not configured for GOOS="darwin"`

and properly detect the correct port range
2020-03-30 09:13:03 -04:00
Hans Hasselberg 315ba7d6ad
connect: check if intermediate cert needs to be renewed. (#6835)
Currently when using the built-in CA provider for Connect, root certificates are valid for 10 years, however secondary DCs get intermediates that are valid for only 1 year. There is no mechanism currently short of rotating the root in the primary that will cause the secondary DCs to renew their intermediates.
This PR adds a check that renews the cert if it is half way through its validity period.

In order to be able to test these changes, a new configuration option was added: IntermediateCertTTL which is set extremely low in the tests.
2020-01-17 23:27:13 +01:00
John Eikenberry 829c330a64 change sysctl call to use absolute path
Fixes: #6804
2019-11-15 14:28:13 -08:00
R.B. Boyer 5c5f21088c sdk: add freelist tracking and ephemeral port range skipping to freeport
This should cut down on test flakiness.

Problems handled:

- If you had enough parallel test cases running, the former circular
approach to handling the port block could hand out the same port to
multiple cases before they each had a chance to bind them, leading to
one of the two tests to fail.

- The freeport library would allocate out of the ephemeral port range.
This has been corrected for Linux (which should cover CI).

- The library now waits until a formerly-in-use port is verified to be
free before putting it back into circulation.
2019-09-17 14:30:43 -05:00
Jeff Mitchell d3c7d57209
Move internal/ to sdk/ (#5568)
* Move internal/ to sdk/

* Add a readme to the SDK folder
2019-03-27 08:54:56 -04:00